Inspects equipment, diagnoses trouble.

检验设备，故障分析。

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Among these, it is very important to store and query the historical data, which is mainly used to improve the technology process, device performance maintenance and trouble diagnoses.

其中，历史数据的存储和查询是工业组态软件不可或缺的部分，它主要服务于工艺流程的改进、设备性能的维护以及故障原因的诊断。

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